- 专利标题: SELECTIVE DEPOSITION FOR INTEGRATED CIRCUIT INTERCONNECT STRUCTURES
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申请号: US17745614申请日: 2022-05-16
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公开(公告)号: US20220277996A1公开(公告)日: 2022-09-01
- 发明人: Hsin-Yen Huang , Shao-Kuan Lee , Cheng-Chin Lee , Hai-Ching Chen , Shau-Lin Shue
- 申请人: Taiwan Semiconductor Manufacturing Co., Ltd.
- 申请人地址: TW Hsinchu
- 专利权人: Taiwan Semiconductor Manufacturing Co., Ltd.
- 当前专利权人: Taiwan Semiconductor Manufacturing Co., Ltd.
- 当前专利权人地址: TW Hsinchu
- 主分类号: H01L21/768
- IPC分类号: H01L21/768 ; H01L23/522 ; H01L23/532
摘要:
Examples of an integrated circuit with an interconnect structure and a method for forming the integrated circuit are provided herein. In some examples, the method includes receiving a workpiece that includes a substrate and an interconnect structure. The interconnect structure includes a first conductive feature disposed within a first inter-level dielectric layer. A blocking layer is selectively formed on the first conductive feature without forming the blocking layer on the first inter-level dielectric layer. An alignment feature is selectively formed on the first inter-level dielectric layer without forming the alignment feature on the blocking layer. The blocking layer is removed from the first conductive feature, and a second inter-level dielectric layer is formed on the alignment feature and on the first conductive feature. The second inter-level dielectric layer is patterned to define a recess for a second conductive feature, and the second conductive feature is formed within the recess.
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